diff options
Diffstat (limited to 'src/smtpd/smtpd.c')
| -rw-r--r-- | src/smtpd/smtpd.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/smtpd/smtpd.c b/src/smtpd/smtpd.c index e84128b..6a2cf01 100644 --- a/src/smtpd/smtpd.c +++ b/src/smtpd/smtpd.c @@ -4129,14 +4129,31 @@ static int bdat_cmd(SMTPD_STATE *state, int argc, SMTPD_TOKEN *argv) /* * Read lines from the fragment. The last line may continue in the * next fragment, or in the next chunk. + * + * If smtp_get_noexcept() stopped after var_line_limit bytes and did not + * emit a queue file record, then that means smtp_get_noexcept() + * stopped after CR and hit EOF as it tried to find out if the next + * byte is LF. In that case, read the first byte from the next + * fragment or chunk, and if that first byte is LF, then + * smtp_get_noexcept() strips off the trailing CRLF and returns '\n' + * as it always does after reading a complete line. */ do { + int can_read = var_line_limit - LEN(state->bdat_get_buffer); + if (smtp_get_noexcept(state->bdat_get_buffer, state->bdat_get_stream, - var_line_limit, + can_read > 0 ? can_read : 1, /* Peek one */ SMTP_GET_FLAG_APPEND) == '\n') { /* Stopped at end-of-line. */ curr_rec_type = REC_TYPE_NORM; + } else if (LEN(state->bdat_get_buffer) > var_line_limit) { + /* Undo peeking, and output the buffer as REC_TYPE_CONT. */ + vstream_ungetc(state->bdat_get_stream, + vstring_end(state->bdat_get_buffer)[-1]); + vstring_truncate(state->bdat_get_buffer, + LEN(state->bdat_get_buffer) - 1); + curr_rec_type = REC_TYPE_CONT; } else if (!vstream_feof(state->bdat_get_stream)) { /* Stopped at var_line_limit. */ curr_rec_type = REC_TYPE_CONT; |